volume | PIER Journals

Abstract

In this paper, a miniaturized Ultra-Wideband (UWB) flower-shaped radiator antenna is designed and simulated for 2.9 GHz to 14.8 GHz applications in Wireless Body Area Networks (WBAN). To achieve wideband, two alterations have been incorporated into the proposed design i.e. by adopting a flower-shaped patch to enhance bandwidth and by using the defective ground plane, which reduces capacitive effects, increasing impedance matching within the operating band. This innovative antenna has a footprint of 15 mm x 20 mm x 1.6 mm and uses textile material denim as its substrate, making it compatible with portable UWB devices. Aside from these characteristics, the device also has omnidirectional radiation patterns, a peak gain up to 5 dB, and a fidelity factor over 85%. It is found that the simulation and measurement results are in good agreement. In comparison with existing structures, the antennas obtained show wide operating ranges and compact dimensions.

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Mrs. Samanthapudi Bhavani

Prof. Thangavelu Shanmuganantham